Related Experiment Video
Updated: Jun 1, 2026

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
Published on: January 10, 2025
Hormone therapy -- where are we now?
Helena J Teede1, Amanda Vincent
1School of Public Health and Preventative Medicine, Monash University and Head of Diabetes, Southern Health Melbourne, Victoria. helena.teede@monash.edu
Background:
Menopause is the permanent cessation of menstruation resulting from loss of ovarian follicular activity. The characteristic symptoms of a fall in oestrogen are vasomotor and urogenital atrophy symptoms; with symptoms reported by up to 85% of women over a mean duration of 5.2 years. Long term consequences of menopause include osteoporosis and cardiovascular disease. Menopause management is highly controversial and can be confusing for both clinicians and their women patients.
Objective:
To explore menopausal management options including comprehensive evaluation; lifestyle modification for symptom relief and risk prevention; hormone therapy or nonhormonal alternatives for symptom relief; prevention and treatment of long term risks; and education and psychological support and therapy.
Discussion:
Use of hormone therapy involves consideration of the woman's risk-benefit profile. We attempt to clarify this complex topic and focus on the impact of hormone therapy in women aged 50-59 years, including the benefits of relief of hot flushes and urogenital atrophy symptoms and the prevention of fractures and diabetes; and the risks, including venothrombotic episodes, stroke, cholecystitis and breast cancer (with combined oestrogen and progestogen only). Nonhormonal options are also explored.
Related Concept Videos
Target Cell Response to Hormones
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
Hormonal Regulation
Hormonal Regulation
Drug Administration and Therapy Phases: Overview
The pharmaceutical phase focuses on leveraging the physicochemical properties of the drug to design and manufacture an effective product. Variants include orally administered tablets or capsules, topical creams or ointments, and parenteral-delivery solutions or emulsions.
The pharmacokinetic phase...
Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
